/* Transfereko Login — carte centrée + décor (docs/CHARTE-VISUELLE.md) */
:root {
  --bg: #F7F5FC;
  --surface: #FFFFFF;
  --surface-raised: #F0EBFA;
  --border: #E4DDF2;
  --border-soft: #EEEAF6;
  --text: #0A0A0A;
  --text-dim: #5C5668;
  --text-faint: #8E879A;

  --accent: #7D39EB;
  --accent-bright: #9B5FFF;
  --accent-deep: #5B21B6;
  --accent-wash: rgba(125, 57, 235, 0.10);
  --accent-rgb: 125, 57, 235;
  --on-accent: #FFFFFF;
  --lime: #C6FF33;
  --lime-rgb: 198, 255, 51;

  --danger: #FF4D6A;
  --success: #C6FF33;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius-lg: 28px;
  --radius-sm: 12px;

  --shadow-sm: 0 2px 8px rgba(43, 33, 27, 0.05);
  --shadow-lg: 0 28px 56px -24px rgba(125, 57, 235, 0.28), 0 10px 24px -12px rgba(43, 33, 27, 0.1);

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #000000;
  --surface: #121214;
  --surface-raised: #1C1C22;
  --border: #2A2A32;
  --border-soft: #222228;
  --text: #FFFFFF;
  --text-dim: #A8A4B3;
  --text-faint: #6F6A7A;

  --accent: #9B5FFF;
  --accent-bright: #B58AFF;
  --accent-deep: #7D39EB;
  --accent-wash: rgba(155, 95, 255, 0.16);
  --accent-rgb: 155, 95, 255;
  --on-accent: #FFFFFF;
  --lime: #C6FF33;
  --lime-rgb: 198, 255, 51;

  --danger: #FF6B81;
  --success: #C6FF33;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 28px 56px -22px rgba(155, 95, 255, 0.38), 0 12px 28px -12px rgba(0, 0, 0, 0.5);

  color-scheme: dark;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  background: var(--bg);
  height: 100%;
  overflow: hidden;
}

body.login-page {
  margin: 0;
  height: 100%;
  height: 100dvh;
  max-height: 100dvh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  position: relative;
}

/* Animated page background */
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 15% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(ellipse 55% 50% at 88% 78%, color-mix(in srgb, var(--accent-bright) 16%, transparent), transparent 58%),
    var(--bg);
}

.login-bg-grid {
  position: absolute;
  inset: -20%;
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 8%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 8%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 65% at 50% 50%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 65% at 50% 50%, #000 20%, transparent 75%);
  opacity: 0.45;
  animation: login-grid-drift 28s linear infinite;
}

.login-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.55;
  will-change: transform;
}

.login-bg-orb--a {
  width: min(46vw, 420px);
  height: min(46vw, 420px);
  top: -8%;
  left: -6%;
  background: color-mix(in srgb, var(--accent) 42%, transparent);
  animation: login-orb-a 16s ease-in-out infinite;
}

.login-bg-orb--b {
  width: min(52vw, 480px);
  height: min(52vw, 480px);
  right: -10%;
  bottom: -12%;
  background: color-mix(in srgb, var(--accent-bright) 38%, transparent);
  animation: login-orb-b 19s ease-in-out infinite;
}

.login-bg-orb--c {
  width: min(34vw, 300px);
  height: min(34vw, 300px);
  left: 42%;
  top: 58%;
  background: color-mix(in srgb, var(--lime) 22%, transparent);
  opacity: 0.28;
  animation: login-orb-c 14s ease-in-out infinite;
}

@keyframes login-grid-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-48px, -48px, 0); }
}

@keyframes login-orb-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(28px, 36px) scale(1.08); }
}

@keyframes login-orb-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-36px, -24px) scale(1.1); }
}

@keyframes login-orb-c {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(18px, -22px) scale(1.12); }
}

.login-shell {
  position: relative;
  z-index: 1;
  height: 100%;
  height: 100dvh;
  max-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: clamp(20px, 4vw, 40px);
  overflow: hidden;
  box-sizing: border-box;
}

/* Centered modal card — not full-bleed */
.login-stage {
  position: relative;
  width: min(1080px, 100%);
  height: min(600px, calc(100dvh - clamp(72px, 12vw, 110px)));
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(0, 1.05fr);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
  backdrop-filter: blur(18px) saturate(1.12);
  -webkit-backdrop-filter: blur(18px) saturate(1.12);
  animation: login-in 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes login-in {
  from { opacity: 0; transform: translateY(16px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

/* Décor continu sur le bord droit de la carte */
.login-stage-decor {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.login-decor-edge {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(38%, 280px);
  height: 100%;
  color: color-mix(in srgb, var(--accent) 18%, #E9E2F8);
}

:root[data-theme="dark"] .login-decor-edge {
  color: color-mix(in srgb, var(--accent) 28%, transparent);
}

:root[data-theme="dark"] .login-stage {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.login-copy,
.login-visual {
  position: relative;
  z-index: 1;
}

.login-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(28px, 4vw, 48px);
  min-width: 0;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--surface) 96%, transparent) 0%,
    color-mix(in srgb, var(--surface) 72%, transparent) 100%
  );
}

.login-copy-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  max-width: 400px;
  min-height: 0;
  overflow-y: auto;
  padding-right: 2px;
}

.login-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  width: fit-content;
}

.login-brand img,
.login-brand .wordmark-img {
  height: clamp(34px, 3.8vw, 44px);
  width: auto;
  max-width: min(220px, 100%);
  display: block;
  object-fit: contain;
}

.login-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.6vw, 2.45rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  text-align: left;
  color: var(--text);
}

.login-subtitle {
  margin: 0 0 18px;
  text-align: left;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--text-dim);
  max-width: 34ch;
}

.login-account-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  margin: 0 0 18px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-raised) 88%, transparent);
  border: 1px solid var(--border-soft);
}

.login-account-toggle[hidden] {
  display: none !important;
}

.login-account-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 10px 8px;
  border-radius: 11px;
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

.login-account-tab:hover {
  color: var(--text);
}

.login-account-tab.is-active {
  background: var(--surface);
  color: var(--accent-deep);
  box-shadow: var(--shadow-sm);
}

:root[data-theme="dark"] .login-account-tab.is-active {
  color: var(--accent-bright);
  background: color-mix(in srgb, var(--surface) 92%, var(--accent) 8%);
}

.login-panel[hidden] {
  display: none !important;
}

.login-team-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 12px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.login-field input {
  height: 46px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.login-field input::placeholder {
  color: var(--text-faint);
}

.login-field input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px var(--accent-wash);
}

.login-team-hint {
  margin-top: 4px;
  max-width: 42ch;
}

.login-google-wrap {
  display: flex;
  width: 100%;
  margin: 0 0 4px;
}

.login-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 54px;
  padding: 0 22px;
  border-radius: 16px;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition:
    filter 0.15s ease,
    transform 0.18s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.18s ease;
}

.login-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
}

.login-btn-google {
  border: none;
  background: linear-gradient(105deg, var(--accent-bright) 0%, var(--accent) 48%, var(--accent-deep) 100%);
  color: var(--on-accent);
  box-shadow:
    0 14px 28px -14px rgba(var(--accent-rgb), 0.55),
    0 2px 0 color-mix(in srgb, #fff 18%, transparent) inset;
}

.login-btn-google:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-2px);
  box-shadow:
    0 18px 34px -14px rgba(var(--accent-rgb), 0.62),
    0 2px 0 color-mix(in srgb, #fff 22%, transparent) inset;
}

.login-btn-google:active:not(:disabled) {
  transform: translateY(0);
}

.login-btn-google.is-busy {
  opacity: 0.75;
}

.login-google-icon {
  width: 26px;
  height: 26px;
  flex: none;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.55));
}

.login-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 20px 0 16px;
  color: var(--text-faint);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-soft);
}

.login-footer {
  margin: 0;
  text-align: left;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-dim);
  max-width: 38ch;
}

.login-footer a {
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: none;
}

:root[data-theme="dark"] .login-footer a { color: var(--accent-bright); }
.login-footer a:hover { text-decoration: underline; }

.login-copy-foot {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.login-social {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.login-social-link {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  background: color-mix(in srgb, var(--surface-raised) 80%, transparent);
  border: 1px solid var(--border-soft);
  text-decoration: none;
  font-size: 0.9rem;
  transition:
    color 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease,
    transform 0.18s cubic-bezier(0.22, 1, 0.36, 1);
}

.login-social-link:hover {
  color: var(--accent-deep);
  background: var(--accent-wash);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  transform: translateY(-2px);
}

:root[data-theme="dark"] .login-social-link:hover {
  color: var(--accent-bright);
}

.login-legal {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  font-size: 0.78rem;
  color: var(--text-faint);
}

.login-legal a {
  color: var(--text-dim);
  text-decoration: none;
  font-weight: 600;
}

.login-legal a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

:root[data-theme="dark"] .login-legal a:hover {
  color: var(--accent-bright);
}

.login-page-footer {
  flex: none;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-faint);
  line-height: 1.4;
  padding: 0 8px;
}

.login-page-footer p {
  margin: 0;
}

.login-page-footer a {
  color: var(--text-dim);
  font-weight: 600;
  text-decoration: none;
}

.login-page-footer a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

:root[data-theme="dark"] .login-page-footer a:hover {
  color: var(--accent-bright);
}

.login-status {
  margin: 0 0 16px;
  min-height: 1.2em;
  font-size: 0.84rem;
  line-height: 1.4;
  text-align: left;
}

.login-status:empty { display: none; }
.login-status.is-error { color: var(--danger); }
.login-status.is-ok { color: var(--accent-deep); }
:root[data-theme="dark"] .login-status.is-ok { color: var(--lime); }
.login-status.is-info { color: var(--text-dim); }

.login-theme-toggle {
  position: fixed;
  top: max(16px, env(safe-area-inset-top));
  right: max(16px, env(safe-area-inset-right));
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--text-dim);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 20;
}

.login-theme-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
}

.login-config-warn {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-wash);
  border: 1px dashed color-mix(in srgb, var(--accent) 35%, var(--border));
  font-size: 0.8rem;
  color: var(--accent-deep);
  line-height: 1.45;
}

:root[data-theme="dark"] .login-config-warn { color: var(--accent-bright); }
.login-config-warn[hidden] { display: none !important; }

.login-visual {
  position: relative;
  min-height: 0;
  height: 100%;
  background: transparent;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: clamp(18px, 3vw, 36px);
}

:root[data-theme="dark"] .login-visual {
  border-left: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
}

.login-visual-img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  object-position: center;
  display: block;
  user-select: none;
  pointer-events: none;
  animation: login-visual-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}

@keyframes login-visual-in {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .login-shell {
    padding: 16px;
  }

  .login-stage {
    width: min(520px, 100%);
    height: auto;
    max-height: calc(100dvh - 72px);
    grid-template-columns: 1fr;
    grid-template-rows: minmax(160px, 30vh) auto;
    overflow: auto;
  }

  .login-visual {
    order: -1;
    min-height: 180px;
    padding: 16px 16px 0;
  }

  .login-copy {
    padding: 22px 22px 26px;
    gap: 16px;
    background: transparent;
  }

  .login-copy-main {
    max-width: none;
  }

  .login-decor-edge { width: min(48%, 220px); opacity: 0.85; }
}

@media (max-width: 480px) {
  .login-shell { padding: 12px; }
  .login-stage { border-radius: 22px; }
  .login-title { font-size: 1.7rem; }
  .login-btn { height: 52px; border-radius: 14px; }
  .login-theme-toggle {
    top: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-stage,
  .login-visual-img,
  .login-bg-orb,
  .login-bg-grid { animation: none; }
  .login-btn-google:hover:not(:disabled) { transform: none; }
  .tk-totop:hover .tk-totop-chevron,
  .tk-totop:focus-visible .tk-totop-chevron,
  .tk-totop:hover .tk-totop-tick,
  .tk-totop:focus-visible .tk-totop-tick,
  .tk-totop.is-visible:not([hidden]) { animation: none; }
}

/* Brand loader + page curtain (login has no app.css) */
.tk-loader {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: grid;
  place-items: center;
  background: var(--bg);
  pointer-events: none;
}
.tk-loader.is-done { display: none; }
.tk-loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.tk-loader-logo {
  height: 48px;
  width: auto;
  display: block;
}
.tk-loader-bar {
  width: 120px;
  height: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--border) 80%, transparent);
  overflow: hidden;
}
.tk-loader-bar span {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--accent), var(--lime));
  border-radius: inherit;
}
html.tk-loading body > *:not(.tk-loader):not(.tk-page-curtain):not(.tk-totop) {
  visibility: hidden;
}
html.tk-boot {
  background: var(--bg, #F7F5FC);
}
html.tk-boot::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  background: var(--bg, #F7F5FC);
  pointer-events: none;
}
.tk-page-curtain {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: grid;
  place-items: center;
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.tk-totop {
  --tk-totop-size: 58px;
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 9200;
  width: var(--tk-totop-size);
  height: calc(var(--tk-totop-size) + 10px);
  padding: 0;
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--border));
  border-radius: 14px 14px 18px 6px;
  background:
    linear-gradient(155deg,
      color-mix(in srgb, var(--surface) 88%, var(--accent) 12%) 0%,
      var(--surface) 55%,
      color-mix(in srgb, var(--surface) 92%, var(--lime) 8%) 100%);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--lime) 18%, transparent),
    0 14px 32px -14px rgba(var(--accent-rgb), 0.55),
    0 4px 12px rgba(0, 0, 0, 0.12);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  isolation: isolate;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform-origin: 70% 100%;
  -webkit-tap-highlight-color: transparent;
}
.tk-totop[hidden] { display: none !important; }
.tk-totop.is-visible { pointer-events: auto; }
.tk-totop-slash {
  position: absolute;
  left: 0; top: 12%; bottom: 12%; width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--lime), var(--accent));
  box-shadow: 0 0 12px rgba(var(--lime-rgb), 0.55);
}
.tk-totop-beam {
  position: absolute;
  left: 50%; bottom: 18%; width: 3px; height: 120%;
  transform: translateX(-50%) scaleY(0);
  transform-origin: bottom center;
  border-radius: 999px;
  background: linear-gradient(0deg, transparent, var(--lime) 40%, #fff 100%);
  opacity: 0; pointer-events: none; z-index: 0;
}
.tk-totop-rail {
  position: absolute; top: 8px; right: 8px;
  display: flex; flex-direction: column-reverse; gap: 3px; z-index: 1;
}
.tk-totop-tick {
  display: block; width: 10px; height: 2px; border-radius: 1px;
  background: color-mix(in srgb, var(--text-dim) 55%, transparent);
}
.tk-totop-tick:nth-child(1) { width: 6px; }
.tk-totop-tick:nth-child(2) { width: 8px; }
.tk-totop-tick:nth-child(3) {
  width: 10px; background: var(--lime);
  box-shadow: 0 0 8px rgba(var(--lime-rgb), 0.45);
}
.tk-totop-core {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 5px; margin-top: 6px;
}
.tk-totop-chevron {
  width: 12px; height: 12px;
  border-left: 2.5px solid var(--accent);
  border-top: 2.5px solid var(--accent);
  transform: rotate(45deg); margin-bottom: -2px;
}
.tk-totop-label {
  font-family: var(--font-mono);
  font-size: 0.62rem; font-weight: 600;
  letter-spacing: 0.18em; line-height: 1; color: var(--text); padding-left: 0.18em;
}
.tk-totop:hover,
.tk-totop:focus-visible {
  border-color: color-mix(in srgb, var(--lime) 55%, var(--accent));
  outline: none;
}
.tk-totop:hover .tk-totop-chevron,
.tk-totop:focus-visible .tk-totop-chevron { border-color: var(--lime); }
.tk-totop.is-launching { border-color: var(--lime); }
@media (max-width: 640px) {
  .tk-totop { --tk-totop-size: 52px; }
}